#ifndef LOCKER_H
#define LOCKER_H
#include <exception>
#include <pthread.h>
#include <semaphore.h>


class locker
{
public:
	locker()
	{
		if (pthread_mutex_init(&m_mutex, NULL) != 0)
		{
			throw std::exception();
		}
	}
	~locker()
	{
		pthread_mutex_destroy(&m_mutex);
	}

	bool lock()
	{
		return pthread_mutex_lock(&m_mutex) == 0;
	}
	bool unlock()
	{
		return pthread_mutex_unlock(&m_mutex) == 0;
	}


private:
	pthread_mutex_t m_mutex;
};

class sem
{
public:
	sem()
	{
		if (sem_init(&m_sem, 0, 0) != 0)
		{
			throw std::exception();
		}
	}
	~sem()
	{
		sem_destroy(&m_sem);
	}

	bool wait() { return sem_wait(&m_sem) == 0; }
	bool post() { return sem_post(&m_sem) == 0; }
private:
	sem_t m_sem;
};
#endif // !LOCKER_H
